Waterfy vs IntervalFlow
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Waterfy
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Waterfy is a water tracker with workout logging, reminders, widgets and Apple Health integration. Track your daily water intake, build healthy habits and stay consistent every day. โ 164 drinks with automatic hydration value (250 ml coffee โ 250 ml water) โ 7 regional drink packs with local favorites โ 25 workout types โ your daily goal adapts to the load โ Milliliters or fluid ounces, your call โ Home Screen widget: tap = a glass, no need to open the app โ Apple Watch: log a drink right from your wrist โ iCloud sync across all your devices โ Apple Health: water, weight and workouts sync to Health โ Flexible reminders with a Do Not Disturb window โ Keep your streak going with 89 achievements โ Light and dark themes โ 7 languages, no ads Track your daily water intake, log workouts, and monitor weight changes. The app helps you build healthy habits and stay in shape without unnecessary complexity. Start taking care of yourself every day, starting now Privacy Policy: https://waterfy.club/legal/privacy/privacy_policy_en.html Terms of Use: https://waterfy.club/legal/terms/terms_and_conditions_en.html
IntervalFlow
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A HIIT and interval timer that stays out of your way. No ads. No tracking. Nothing interrupts your workout. WHY INTERVALFLOW โข No ads, ever โ not a banner, not a video, not between rounds. Your countdown is never covered and your audio is never cut. โข No tracking โ no analytics, no advertising identifier, no account. Your workouts stay on your device. โข Live Activity and Dynamic Island โ the current phase, the countdown, and the round stay on your Lock Screen. Check mid-set without unlocking. BUILT FOR REAL WORKOUTS โข Ready-made presets: Tabata, HIIT 40/20, EMOM, boxing rounds, and multi-set circuits. โข Custom builder: prepare, work, rest, rounds, sets, rest between sets, and cooldown โ to the second. โข A countdown you can read across the room, with each phase in its own colour: work, rest, get ready, cooldown. โข Sound, haptics, and voice cues, so you can keep your eyes off the screen and on the set. IT KEEPS THE RECORD โข Every finished session is logged on its own โ time, rounds, and an estimate of calories. โข A daily streak and a weekly count, for the weeks when motivation needs a number. Made for HIIT, Tabata, cross-training, boxing, running intervals, stretching, EMOM, and circuits โ at the gym or on your living room floor. Open it, tap a preset, and start. That is the whole app.
Screenshots
Verdict
The clearest difference is in-app purchases: IntervalFlow at none against Waterfy's 3. On price, update cadence, ads and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Waterfy sells 3 in-app purchases, starting at $1.99 per month. IntervalFlow asks for nothing beyond the download.
Waterfy ships an update monthly, IntervalFlow every 4 weeks. The most recent releases landed on June 28, 2026 and September 18, 2026 respectively.
| Parameter | Waterfy | IntervalFlow |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly | Every 4 weeks โ better |
| Ads | No | No |
| In-app purchases | Yes | No โ better |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 16.0 โ better | 17.0 |
| Further details โ not scored | ||
| Size | 86 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | FORGE OF THE GODS LLC | Hyunwoo Lee |
In-app purchases
Waterfy
- Premium for a month7 Days trial$1.991 Month
- Premium for half a year7 Days trial$7.996 Months
- Premium for a year7 Days trial$14.991 Year
IntervalFlow
No in-app purchases





